Question

Find all the real fourth roots of 0.0001.

0.01
-0.01 and 0.01
-0.1 and 0.1
0.1

Answer 1

4th root is even so there can be negative solutions.
0.0001
0.001 * 0.1
0.01 * 0.1 * 0.1
0.1 * 0.1 *0.1 * 0.1

4th root (0.0001) = 0.1 or -0.1